I upgraded from MySQL 5.7 to 8.0, but found that the service wouldn't start. I was able to fix it by manually re-running the upgrade process.
I've been learning Ruby during my sabbatical, and found the exercises from Exercism.io a great way to do that. Manually running the unit tests was tedious, though, so I setup Guard to do it automatically whenever I save a file.
WordPress allows you to have multiple theme directories, but moving themes from one to another may result in a fatal error. It's possible to fix that by updating a few options and clearing a transient.
"Even though we might have some very, very strong disagreements as we develop this thing called WordPress, at the end of the day, I think we all agree that when it impacts people's lives positively like that, it's really really special."
If QuickTime exports a stereo recording with an empty right channel, you can use ffmpeg to easily copy the left channel to the right one, for a proper mono recording.
I needed a list of countries where ideographic languages are common, but couldn't find a pre-made one. I was able to build one myself, though, which will hopefully save others from having to do the same.